baber/WOPTO huggingface dataset:
Patent CA-2156815-C (CA)
Title: Moisture-free atmosphere brazing of ferrous metals
Inventor: BONNER BRIAN BERNARD
IPC: B23K31/02
Filed: 1995-08-23
Granted: 1999-05-11
Abstract: The present invention discloses a novel, moisture-free atmosphere for brazing carbon steels that provides good braze flow and brazed joint quality with minimum or no formation of soot on brazed joints. According to the present invention, carbon steels are brazed in continuous furnaces using a moisture-free atmospherecontaining a mixture of three gases including nitrogen, hydrogen, and carbon dioxide. The key features of the invention involve (1) formation of moisture, which is needed to facilitate braze flow and to minimize formation of soot on brazed joints, in-situ in the heating zone of the furnace by the reaction between hydrogen and carbon dioxide and (2) reduction in the overall amount of a reducing gas required for brazing carbon steels by keeping moisture out of the cooling zone. The use of a moisture-free three gas atmosphere has been unexpectedly found to (1) eliminate the heed of an expensive and difficult to control external humidification system, (2) provide flexibility in adjusting moisture content of the atmosphere in the heating zone of the furnace simply by adjusting the flow rate of hydrogen or carbon dioxide or both, and (3) facilitate rapid conditioning of the furnace by keeping moisture out of the cooling zone. The moisture-free atmosphere has also been unexpectedly found to provide good braze flow, fillet formation, and brazed joint quality while minimizing or eliminating formation of soot on brazed joints.
Patent CA-2157120-C (CA)
Inventor: ROSS RICHARD J
IPC: E21B43/1185
Filed: 1994-03-09
Granted: 2005-02-22
Abstract: A method and an apparatus for use in a wellbore are provided to prevent an igniter (78) from igniting a pyrotechnic device (80) within a downhole well tool until after the downhole well tool is positioned downhole within the wellbore. A blocking member (104) is movable between two positions for selectively obstructing an ignition pathway between the igniter (78) and pyrotechnic device (80). An actuator (108) is provided which, when heated to an activation temperature by downhole well temperatures, moves the blocking member (104) from a position obstructing the ignition pathway to a position for allowing the igniter to ignite the pyrotechnic device.
Patent CA-2157438-C (CA)
Inventor: AGAR JORAM
IPC: G01F7/00
Filed: 1995-09-01
Granted: 2005-11-22
Abstract: A high void fraction multi-phase fluid flow meter and method, wherein a first fluid flow path including a multi-phase flow measuring device disposed in series with a liquid flow restrictor is provided in parallel with a second fluid flow path including a gas flow measuring device. The presence of liquid flow in the flow meter is detected. When liquid flow is detected, a valve in the second fluid flow path operates to cut off fluid flow through the second fluid flow path. Otherwise the valve in the second fluid flow path operates to divert gas flow through the second fluid flow path. Alternatively, a negative pressure differential is produced across the second fluid flow path when liquid flow is present, by passing the incoming liquid flow through a jet pump nozzle, to prevent liquid flow into the second fluid flow path. A check valve is then disposed in the second fluid flow path to prevent backflow from the output of the multi-flow measuring device into the second fluid flow path. A computer outputs an indication of the liquid flow, typically oil flow and water flow, through the multi-phase flow meter, and the combined total amount of gas flow through the two flow meters.
Patent CA-2157792-C (CA)
Title: N-(3-piperidinyl-carbonyl)-beta-alanine derivatives as paf antagonists
Inventor: OHKUBO MITSURU
IPC: C07D413/12
Filed: 1994-09-21
Granted: 2005-05-24
Abstract: This invention relates to .beta.-alanine derivatives represented by formula (I), wherein each symbol is as defined in the specification and pharmaceutically acceptable salt thereof which is glycoprotein IIb/IIIa antagonist, inhibitor of blood platelets aggregation and inhibitor of the binding of fibrinogen to blood platelets, to processes for the preparation thereof, to a pharmaceutical composition comprising the same and to a method for the prevention and/or treatment of diseases indicated in the specification to a human being or an animal.
Patent CA-2159638-C (CA)
Inventor: DUNMEAD STEPHEN D
IPC: C04B35/80
Filed: 1994-01-27
Granted: 2005-07-05
Abstract: Aluminum nitride powder, aluminum nitride platelets, powdered solid solutions of aluminum nitride and at least one other ceramic material such as silicon carbide, and composites of aluminum nitride and transition metal borides or carbides are prepared by combustion synthesis at low gaseous nitrogen pressures. Porous bodies of aluminum nitride or composites of aluminum nitride and transition metal borides or carbides are also prepared by combustion synthesis at these pressures. The porous bodies are suitable for infiltration, either as formed or after being coated with at least one layer of a silicate material, by polymers or metals.
Patent CA-2161584-C (CA)
Inventor: O'CARROLL LYNDA C
IPC: C02F1/56
Filed: 1995-10-27
Granted: 2000-05-09
Abstract: A process for the rendering of an effluent stream from a food processing plant,  in which the effluent has or is made to have an acidic pH and carries  proteinaceous  material.  The  effluent  is contacted with an inorganic coagulant  (clay)  that together with the acidic pH effectively neutralises ionic charges on the proteinaceous material to cause the  proteinaceous  material  to precipitate  out  of solution.  The effluent stream is contacted with a biologically   derived   polymeric   flocculant   to facilitate settling of the precipitated proteinaceous material as flocs. The inorganic coagulant is present in an amount by weight of at least 1.5 times or 2.5 times the amount by weight of polymeric flocculant. Flocs are removed from the effluent stream to thereby render the effluent stream. A biologically derived co-flocculant is added to the effluent stream after contact with the effluent stream by coagulant and flocculant.  Insoluble salts of alkaline earth metals are added to the effluent stream after contact with the effluent stream by coagulant and flocculant. The process may be applied to unit operations within the food processing plant. Apparatus for floc treatment include a mixing and acidity setting tank, a conical settling vessel with baffled outlet,  a floc  seed supply for effluent entering the settling vessel, an effluent diffuser at the inlet to the settling vessel and an agitator set to delay agitation until floc settles in the settling vessel.
Patent CA-2165420-C (CA)
Title: System and method for modulating a carrier frequency
Inventor: LABRECHE LOUIS
IPC: G01S1/02
Filed: 1994-06-17
Granted: 2003-12-16
Abstract: A carrier frequency modulating system and method for producing a modulated c arrier frequency is disclosed. The system comprises a carrier frequency signal generator (23) for producing a carrier frequency signal at a carrier frequency at an output (42) thereof. The system further comprises a sequencer (32) for producing a modulation signal at an output (35) thereof. This modulation signal compr ises a plurality of modulation signal portions (68, 68) separated by at least one n ull modulation signal portion (69) having a correspondin g time length. The system is provided with a modulator (46) for producing a modulat ed carrier frequency signal at an output (76) thereof. T he modulator (76) has a first input (44) connected to the output (42) of the ca rrier frequency signal generator (23) for receiving the carrier frequency signal, and has a second input (48) for receiving the modulation s ignal. The system further comprises a power supply unit (55) for supplying electrical power to the carrier frequency signal generator (23 ). The sequencer (32) is connected to the carrier freque ncy signal generator (23) for controlling the activation thereof and to interrupt the c arrier frequency signal generator (23) instead of modula ting the null modulation signal portion during the corresponding time length,whereby power consumption of the system is minimized.
Patent CA-2166514-C (CA)
Inventor: CARTER LAN
IPC: B30B11/00
Filed: 1996-01-03
Granted: 2000-05-30
Abstract: A synthetic gasket material for use in a high-pressure press includes a major proportion of clay mineral powder having sufficient lubricity to flow in a high-pressure press, a minor proportion of at least one hard material powder having a sufficiently greater hardness than the clay mineral to retard flow of the clay mineral and form a seal during pressing in a high-pressure press, and a sufficient amount of binder to form an integral body. The synthetic gasket material is formed by thoroughly mixing together in desired proportions the clay mineral, hard material, and binder. The mixture is compacted into a body near net geometry and having a desired configuration to facilitate use in the high-pressure press. The compacted body is heated for a sufficient time and at a sufficient temperature to remove non-crystallographic water. A synthetic gasket material prepared according to principles of this invention displays improved flow, pressure transmitting, and thermal insulating properties when compared with gasket material made from natural pyrophyllite, due to the improved compositional consistency, i.e., lack of impurities and consistently low moisture content, of the synthetic gasket material.
Patent CA-2169266-C (CA)
Inventor: ITO SHOGO
IPC: H04L7/027
Filed: 1995-06-09
Granted: 2006-01-10
Abstract: Récepteur apte à capter des signaux émis selon différents débits de symboles, et à régler de manière variable la largeur de bande passante d'un filtre éliminant les signaux inutiles du signal de sortie d'un détecteur en fonction du débit de symboles. Ce récepteur reproduit les horloges de manière synchrone par rapport au débit de symboles commuté, et ce sans engendrer de discontinuité même lorsque le débit de symboles est modifié par la compensation des variations du temps de propagation dues à une modification de la largeur de bande passante du filtre.
Patent CA-2172408-C (CA)
Inventor: MAHLKVIST INGEMAR
IPC: A61F5/045
Filed: 1994-09-19
Granted: 2005-12-06
Abstract: Body traction table for treatment of among other things back problems comprising a stand presenting a front stand portion and a rear stand portion and supporting a body supporting table and a foot-rest which together are revolving round a mainly horizontal axle in order to turn the body supporting table from standard position in which the foot-rest is lowered into treatment position in which the foot-rest is above the horizontal axle, the body supporting table being supported by a frame which is pivotally connected with the stand. At least one of the stand portions is adjustable for height so that the front stand portion can be made shorter or longer than the rear stand portion.
Patent CA-2172439-C (CA)
Title: Nuclear magnetic resonance technique for determining gas effect with borehole logging tools
Inventor: HURLIMANN MARTIN D
IPC: G01R33/44
Filed: 1996-03-22
Granted: 2005-05-10
Abstract: An NMR pulse sequence technique for use in the borehole environment is provided which uses CPMG pulses according to (See formula I) where j is the index of the CPMG echoes gathered, i is the index of the wait times in the pulse sequence, W i are the varying wait times before the CPMG pulses, and tcp is the Carr-Purcell spacing. Measurements are made of the signals induced in the formation as a result of the magnetic fields to find the spin-echo relaxation time T1. Using T1, the gas effect on formation parameters may be derived. Also, gas saturation and gas chemical composition can be derived. In addition, the diffusion coefficient of gas under reservoir conditions can be more than ten times larger than that of water, making the T2 relaxation time of gas more sensitive to static magnetic field gradients. In formations where gas occupies pores larger than about 10µm, this T2 effect (effect of diffusion on the measured T2 relaxation times of gas) can be used to identify gas even though the tool gradients are not uniform.
Patent CA-2172513-C (CA)
Title: Aminocyclohexylesters et leurs utilisations
Inventor: MACLEOD BERNARD A
IPC: C07D413/12
Filed: 1994-09-23
Granted: 2008-01-08
Abstract: L'invention se rapporte à des composés d'aminocyclohexylester, y compris des thioesters. Les composés de la présente invention peuvent être incorporés dans des compositions et des nécessaires. L'invention se rapporte également à une variété d'utilisations in vitro et in vivo desdits composés et compositions, y compris dans le traitement des arythmies.
Patent CA-2180840-C (CA)
Inventor: MAKI YOSHIAKI
IPC: A23F5/16
Filed: 1994-01-28
Granted: 2003-05-13
Abstract: An improved process for upgrading the quality of roasted coffee beans which comprises: (a) roasting green coffee beans with steam for a period of time from 50 to 300 seconds at a steam temperature of from 251 to 400 °C at a pressure of 6.5 to 20.0 bar G; and thereafter (b) final roasting the  beans from step (a) with steam for a period of time ranging from 60 to 800 seconds at a steam temperature of from 251 to 400 °C at substantially atmospheric pressure conditions is disclosed.
Patent CA-2182258-C (CA)
Title: Sodium enalapril complex and the use thereof to make sodium enalapril
Inventor: MURTHY K S KESHAVA
IPC: C07D521/00
Filed: 1996-07-29
Granted: 2001-04-17
Abstract: A process for making pure sodium enalapril is provided which includes the step of decomplexing essentially pure sodium enalapril-sodium iodide complex to yield essentially pure sodium enalapril.
Patent CA-2189877-C (CA)
Inventor: MONCRIEF FRANK
IPC: B31B50/80
Filed: 1996-03-13
Granted: 2007-01-09
Abstract: A hold-down element (40) for a ro- tary feeder has a curved elongated member for continuously contacting an article during rotation of a rotary head (20). The curva- ture of the hold-down element is selected so that the distance from the elongated mem- ber to the rotary head increases from the point of initial contact to the final contact point on the elongated member. The hold- down element preferably maintains contact for at least 20.degree. of rotation of the rotary head, and thus maintains contact with the article for an extended period of time. The hold-down element is attached to a vacuum shaft (48) on the rotary head, and is pre- vented from rotating relative to the vacuum shaft by a keyway (43) on the hold-down el- ement and a key on the vacuum shaft. The hold-down element, however, is permitted to travel transversely along a longitudinal axis of the vacuum shaft in order to accom- modate different shaped articles.
Patent CA-2204813-C (CA)
Title: Stowage latch assembly for auger
Inventor: BELLMANN KENNETH L
IPC: B60P1/42
Filed: 1997-05-08
Granted: 2001-07-10
Abstract: A stowage latch assembly for an auger includes a hopper for holding granular material and an auger barrel which is swingably movable in an auger-stowing path from a hopper-unloading position, where the auger barrel extends outwardly from the hopper, to an auger-stowage position, where the auger is positioned adjacent a sidewall of the hopper. An auger-latching support assemblyis provided, which includes a gate member openable for receiving the auger barrel when the barrel is moved from the hopper-unloading position to the auger-stowageposition. The gate member is locked in a closed position when the auger is in the stowage position.
Patent CA-2207791-C (CA)
Inventor: OLDS DALE R
IPC: G06F9/445
Filed: 1995-12-12
Granted: 2000-02-22
Abstract: The present invention provides a method and apparatus for dynamically updating computer programs that are providing X.500 directory services without interruption of service. Upon receiving a call to update a computer program providing directory services, a process or thread is executed that authenticates the user making the reload request, loads a program loader, renames the then currently running directory services program, and calls another process or thread, while it awaits completion of the second process or thread. The second process or thread loads and initializes the new directory services computer program and then interacts with the program loader and the new directory services computer program to determine if the old and new directory services programs are compatible. If the old and new directory services computer programs are not compatible, the second process or thread aborts the load and transmits an abort signal to the first process or thread.  If the old and the new directory services computer programs are compatible, the second process or thread transmit a commit signal to the first process or thread. The first thread upon receiving a commit signal from the second process or signal removes itself and the old directory services computer program from memory. Upon receiving an abort signal from the second process or thread, the first process or thread changes the name of the old directory services computer program back to its original name and unload itself and the loader program.
Patent CA-2211551-C (CA)
Inventor: KRONICH PETER G
IPC: F02B75/02
Filed: 1990-05-23
Granted: 1999-07-06
Abstract: An air-cooled internal combustion engine, a crankshaft and a camshaft rotatably journalled in the crankcase parallel to one another, and a cast intake valve chamber and cast exhaust valve chamber each cast integrally with the cylinder and communicating with the combustion chamber via a respective intake valve port and exhaust valve port.          Intake and exhaust valves are disposed for reciprocation in a direction lying perpendicular to the camshaft and simultaneously in a direction lying at an acute angle to a plane passing through the longitudinal axis of the cylinder and parallel to the axis of the camshaft.  An intake cross-over manifold is cast integrally with the cylinder and is delimited by interior walls which are substantially straight in longitudinal direction from a fuel/air intake port to a point of intersection with the intake valve chamber.
Patent CA-2212276-C (CA)
Inventor: RAI GHANSHYAM
IPC: C22C49/00
Filed: 1997-08-01
Granted: 2001-10-02
Abstract: In one embodiment, composite constructions of the invention are in the form of a plurality of coated fibers bundled together to produce a fibrous composite construction in the form of a rod.  Each fiber has a core formed from a hard phase material, that is surrounded by a shell formed from a binder phase material.  In another embodiment of the invention, monolithic sheets of the hard phase material and the binder phase material are stacked and arranged to produce a swirled composite in the form of a rod.  In still another embodiment of the invention, sheets formed from coated fibers are arranged to produce a swirled composite.  Inserts for use in such drilling applications as roller cone rock bits and percussion hammer bits, and shear cutters for use in such drilling applications as drag bits, that are manufactured using conventional methods from these composite constructions exhibit increased fracture toughness due to the continuous binder phase around the hard phase of the composites.  These binder phases increase the overall fracture toughness of the composite by blunting or deflecting the tip of a propagating crack.
Patent CA-2213260-C (CA)
Title: Satellite receiver computer adapter card
Inventor: DILLON DOUGLAS M
IPC: H04N5/44
Filed: 1996-01-16
Granted: 2001-05-15
Abstract: A printed circuit board intended to be placed within a card slot of a personal computer that allows the personal computer to receive information directly from a satellite communication network. The adapter card operates in slave mode to a CPU of the personal computer. The CPU receives demodulated signals from a demodulator of the adapter card via a bus interface on the adapter card. The CPU also receives status information for the demodulator and a tuner and controls the operation of the demodulator and tuner via the bus interface. A DC-DC converter receives power from a power supply for the adapter card circuitry. Moreover, the DC-DC converter powers a low noise block (LNB) of an antenna of the satellite communication network.
Patent CA-2213681-C (CA)
Inventor: MURPHY DAVE
IPC: A47C29/00
Filed: 1997-10-09
Granted: 1999-08-10
Abstract: An adjustable bed canopy and curtain system including a sheet of fabric, at least four vertical post and a frame member. The frame member has a first pair of "L" shaped tubular members and a second pair of "L" shaped tubular members. Each of the fist and second pair of "L" shaped tubular members have a lower elongated portion and an upper elongated portion. Each of the first and second pair of "L" shaped tubular members have a horizontal bar projecting from one of the lower elongated portions and capable of coupling with a horizontal bar of another of the lower elongated portions. The upper elongated portion, of each of the first pair of tubular members, receives the upper elongated portions of the second pair of tubular members when the horizontal bars of each tubular member are coupled. Each of the lower elongated portions, of each of the first and second tubular members, are positioned over one of the four vertical post when the first and second pair of tubular members are coupled. The sheet of fabric is positioned over the coupled first and second tubular members.
Patent CA-2214040-C (CA)
Inventor: KAURANEN ERKKI
IPC: B27G1/00
Filed: 1996-02-27
Granted: 2006-06-06
Abstract: The invention relates to a method and apparatus for patching plywood or the like. In the method, a defective portion (A) is removed from a plywood board (2) with a linearly moveable punch means (7) arranged above the board and having a blade edge (7a). In the method, a patch (11) is removed from a patch board (10) and the patch (11) is placed at that point (B) of the plywood board (2) from which the defective portion (A) has been removed. According to the invention, the patch (11) is cut from the patch board (10) and the patch (11) is inserted into the plywood board (2) with the same linearly moveable punch means (7) above the board with which the defective portion (A) has been removed from the plywood plate (2) a moment earlier.
Patent CA-2217243-C (CA)
Title: System and method for providing priority access and channel assignment in a cellular telecommunication system
Inventor: HOUDE MICHEL
IPC: H04W4/90
Filed: 1996-03-26
Granted: 2004-05-25
Abstract: A system and method of providing users of a mobile cellular telecommunication network, who subscribe to priority service, with priority access to voice or traffic channels during periods of congestion (62) on these channels. The system provides priority to designated priority users for call origination, call termination, and handoff to congested cells. When the network is not congested (63-64), any channel is available for use by any user, whether a designated priority user or not. During periods of congestion, the system enables a service provider to designate (65) whether a reserved bank of channels, a queue technique, or a combination of both is to be utilized to provide priority access and channel assignment (PACA). Call requests are positioned (71) in a queue according to the priority level of the associated subscriber, and by time of arrival within each priority level.